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xsxxxt
摘 要 I
Summary II
1.系统概述 1
1.1 系统及需求分析 1
1.1.1 系统需求 1
1.1.2可行性分析 1
1.2系统设计的背景 5
1.3系统的功能简介 8
1.4系统开发的目标 10
2. 系统分析 11
2.1业务流程分析 11
2.2数据流程分析: 13
2.3数据存储分析:实体联系图 14
2.4功能分析:功能层次图 16
3.系统设计 17
3.1软件模块结构设计 17
3.2数据库设计 18
4.系统的功能 23
4.1系统登陆界面: 23
4.2系统主界面: 26
4.3用户管理模块: 38
4.4学生缴费管理模块: 43
5.系统的实现 55
5.1系统开发环境: 55
5.2系统测试: 55
5.3 系统运行与维护: 58
5.4系统的转换方案: 59
6.全文总结 60
致 谢 61
参考文献 62(Abstract Summary II 1. System outlined a 1.1 system and a demand analysis system 1.1.1 EC demand for a feasibility analysis of an 1.1.2 system design background System 5 1.3 8 1.4 brief function system development goals 10 2. Analysis 11 2.1 Business Process Analysis 11 2.2 data flow analysis : 13 2.3 Data Storage Analysis : Figure 14 entities linked 2.4 Functional Analysis : CMMIS 16 3. System design software module 17 3.1 17 3.2 Structure Design Database Design 18 4. the function of the system landed 23 4.1 System Interface : 23 4.2 System Interface : 26 4.3 user management module : students pay 38 4.4 Management Module : 43 5. System 55 5.1 System Development environment : 55 5.2 System testing : 55 5.3 System Operation and maintenance : 58 5.4 System Conversion Program : 59 6. Than)
- 2007-05-26 09:22:01下载
- 积分:1
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dynaexamples
ls-dyna软件的超高速撞击算例,包含清彻,鸟撞等(examples of super high speed impact for ls-dyna)
- 2020-07-01 15:40:01下载
- 积分:1
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chonggou
重构改善既有代码的设计+中文版,难得的好资料(Reconstruction to improve the Design of Existing Code+ Chinese version, a rare good information)
- 2011-08-16 17:25:11下载
- 积分:1
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Guass-noise
说明: 产生一个高斯白噪声
利用MATLAB自带的fir1函数产生一个低通滤波器,限制高斯白噪声的带宽,由此产生了视频噪声。
利用产生的视频噪声,分别代入噪声调幅干扰的时域表达式,并且进行100次的积累后求平均值,对其进行快速傅里叶变换后,由此画出噪声调幅干扰的频域波形。
重复上述步骤,分别代入噪声调频干扰与噪声调相干扰的时域表达式,分别画出其频域波形与时域波形。(Generate a Gauss white noise
The fir1 function of MATLAB is used to generate a low-pass filter, which limits the bandwidth of Gauss white noise, and thus produces video noise.
Using the generated video noise, the time domain expressions of noise amplitude modulation interference are substituted, and the average value is calculated after 100 times accumulation. After fast Fourier transform, the frequency domain waveform of noise amplitude modulation interference is drawn.
Repeat the steps mentioned above, and substitute the time-domain expressions of noise FM interference and noise coherent interference, and draw the frequency-domain waveform and time-domain waveform respectively.)
- 2019-04-15 09:30:37下载
- 积分:1
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23JavaDesignPatterns
JAVA的设计模式经前人总结可以分为23种(JAVA was designed by our predecessors can be divided into 23 kinds of summary)
- 2010-01-30 10:02:12下载
- 积分:1
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OLED显示程序
说明: 实现OLED显示,配置引脚为PA1-5方便,插电就可使用,方便(Realizing OLED Display)
- 2020-06-18 05:00:01下载
- 积分:1
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剑指offer源代码
说明: 一年一度,秋招必备,包含数十道经典编程面试题(Review tricks including dozens of classic programming interview questions)
- 2019-01-04 17:19:14下载
- 积分:1
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OOP(UML.2.0)
UML统一建模语言,面向对象设计的一般方法学,OOP软件开发规范学习的经典(UML Unified Modeling Language, object-oriented design methodology in general, OOP software development of the classical norms of learning)
- 2009-05-08 20:29:07下载
- 积分:1
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se7_ch02_v07
面向对象和传统的方法 经典软件工程 第二章(object oriented and classical sofeware engineering)
- 2009-02-14 19:52:57下载
- 积分:1
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cmm
有关cmm标准 对软件质量保证的新兴标准(Cmm standards related to software quality assurance standards of the emerging)
- 2009-05-26 12:00:01下载
- 积分:1